title: A novel solvent-free approach to imidazole containing nitrogen-bridgehead heterocycles.
abstract: A very simple domino reaction under solvent-free conditions of various pyridine-like heterocycles with 1,2-diaza-1,3-dienes produces in good yields imidazo[1,2-a]pyridines, imidazo[1,2-a]quinolines, and imidazo[2,1-a]isoquinolines. The advantage of this one-pot transformation lies in the use of simple pyridine-like compounds without prefunctionalization of the starting heterocycles.
authors.affiliation: Department of Biomolecular Sciences, Section of Organic Chemistry and Organic Natural Compounds, University of Urbino Carlo Bo, Via I Maggetti 24, 61029 Urbino (PU), Italy.
authors.forename: Orazio A
authors.initials: OA
authors.lastname: Attanasi
authors.forename: Luca
authors.initials: L
authors.lastname: Bianchi
authors.forename: Linda A
authors.initials: LA
authors.lastname: Campisi
authors.forename: Lucia
authors.initials: L
authors.lastname: De Crescentini
authors.forename: Gianfranco
authors.initials: G
authors.lastname: Favi
authors.forename: Fabio
authors.initials: F
authors.lastname: Mantellini
mesh_terms: D006571:Heterocyclic Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D007093:Imidazoles / Q000737:chemistry*; D015394:Molecular Structure; D011725:Pyridines / Q000737:chemistry*; D011804:Quinolines / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry*
chemical_list: D006571:Heterocyclic Compounds; D007093:Imidazoles; D011725:Pyridines; D011804:Quinolines; D012997:Solvents